• tabular@lemmy.world
    link
    fedilink
    English
    arrow-up
    12
    arrow-down
    1
    ·
    1 month ago

    Wikipedia says “direct messages are offered though a central service”. If that’s was/still is correct then you’re correct, it’s centralized.

    Nuance is the friend of truth - pedantic.

    • exu@feditown.com
      link
      fedilink
      English
      arrow-up
      7
      ·
      1 month ago

      The whole algorithm (AppView) is centralised. While it’s technically possible to host with enough capital, a second AppView server would also double bandwidth required for every message sent on the network. This gets worse the more AppView instances you add, as every message has to be sent to every AppView server (exponential growth)

      • mac@lemm.ee
        link
        fedilink
        English
        arrow-up
        1
        ·
        1 month ago

        Thats the same issue with activity pub, is it not?

        • exu@feditown.com
          link
          fedilink
          English
          arrow-up
          3
          ·
          1 month ago

          No, ActivityPub only send messages to the recipients. Uninvolved servers don’t get the message at all until one of their users explicitly searches for it.
          In the worst case where every user has their own server, one message per recipient is sent. Adding another recipient on their own server means one more message being sent and so forth.